Sectional sofa



FIG. 1 is a perspective view of a sectional sofa showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear perspective view thereof; and,

FIG. 4 is an exploded perspective view thereof.

The broken lines shown herein are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a sectional sofa, as shown and described. 